League of Legends is developed by Riot Games, a subsidiary of Chinese company Tencent Holdings Limited (0700). Shares in Tencent fell 3% in trading on the Hong Kong stock exchange but are currently trading near an all-time high. World of Warcraft, which continues to haemorrhage users, is developed by the Blizzard section of Activision Blizzard Inc. (ATVI). Shares fell over $0.25 from open on the back of the news but have recovered to $11.81, down 1.25%. Activision is preparing to announce new titles including The Walking Dead at San Diego Comic-Con on July 14th.

A number of other Activision-Blizzard titles feature on the list, with Diablo III in 5th,StarCraft II in 8th and Call of Duty Modern Warfare 3 in 10th. MapleStory, published by South Korean Nexon (3659) was 7th and EA's (EA) Battlefield 3 was 6th.